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Qatar Engineering & Technology / Environmental Science & Engineering 54 Scientists Subject Rankings
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 02, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.752) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H Index Rankings
Rankings
2,879
World Rank
4
Country Rank
3
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Water Treatment | Waste to Value-added Product
Water Treatment | Waste to Value-added Product
H-Index Metrics
-
H-Index140
-
i10 Index567
-
Citation Counts104,009
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* Total H Index Rankings
Rankings
24,801
World Rank
18
Country Rank
5
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Membrane technology for water and wastewater treatmen
Membrane technology for water and wastewater treatmen
H-Index Metrics
-
H-Index79
-
i10 Index180
-
Citation Counts25,474
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* Total H Index Rankings
Rankings
53,819
World Rank
49
Country Rank
21
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Analytical and environmental chemistry | Environmental Remediation | Validation method in analytical chemistry | Remediation | Adso
Analytical and environmental chemistry | Environmental Remediation | Validation method in analytical chemistry | Remediation | Adso
H-Index Metrics
-
H-Index61
-
i10 Index193
-
Citation Counts18,779
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* Total H Index Rankings
Rankings
61,907
World Rank
60
Country Rank
28
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Climate change ecology | Climate change vulnerability | Vegetation Science | Soil biodiversity | ITE
Climate change ecology | Climate change vulnerability | Vegetation Science | Soil biodiversity | ITE
H-Index Metrics
-
H-Index58
-
i10 Index152
-
Citation Counts15,953
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* Total H Index Rankings
Rankings
75,020
World Rank
75
Country Rank
20
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Sustainability | Built Environment | Life-Cycle Assessment | Climate Change | Resilient Infrastructur
Sustainability | Built Environment | Life-Cycle Assessment | Climate Change | Resilient Infrastructur
H-Index Metrics
-
H-Index54
-
i10 Index151
-
Citation Counts10,146
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* Total H Index Rankings
Rankings
75,040
World Rank
76
Country Rank
1
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Desalination | water treatment | environmental engineerin
Desalination | water treatment | environmental engineerin
H-Index Metrics
-
H-Index54
-
i10 Index91
-
Citation Counts11,404
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* Total H Index Rankings
Rankings
89,946
World Rank
93
Country Rank
23
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
112,591
World Rank
121
Country Rank
57
University
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
CO2 capture and conversion | Water/wastewater treatment | Climate chang
CO2 capture and conversion | Water/wastewater treatment | Climate chang
H-Index Metrics
-
H-Index46
-
i10 Index97
-
Citation Counts7,873
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* Total H Index Rankings
Rankings
136,014
World Rank
154
Country Rank
32
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Electronic and transport properties of nanostructures system
Electronic and transport properties of nanostructures system
H-Index Metrics
-
H-Index43
-
i10 Index98
-
Citation Counts5,635
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* Total H Index Rankings
Rankings
172,388
World Rank
189
Country Rank
37
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
Nanobiotechnology for Energy and Environment | MXenes | Green Materials | Bioprocesses | Resourc
Nanobiotechnology for Energy and Environment | MXenes | Green Materials | Bioprocesses | Resourc
H-Index Metrics
-
H-Index38
-
i10 Index60
-
Citation Counts8,561
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* Total H Index Rankings
Rankings
195,315
World Rank
221
Country Rank
44
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Computational Materials Science | Physics | Chemistr
Computational Materials Science | Physics | Chemistr
H-Index Metrics
-
H-Index36
-
i10 Index77
-
Citation Counts5,047
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* Total H Index Rankings
Rankings
219,564
World Rank
243
Country Rank
49
University
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
Innovative Desalination Process Development (Thermal | Membrane | Hybrid
Innovative Desalination Process Development (Thermal | Membrane | Hybrid
H-Index Metrics
-
H-Index34
-
i10 Index54
-
Citation Counts3,691
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* Total H Index Rankings
Rankings
233,188
World Rank
254
Country Rank
51
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Membrane Engineering | Electrospinning | Water Desalination | Membrane Distillation and Water Qualit
Membrane Engineering | Electrospinning | Water Desalination | Membrane Distillation and Water Qualit
H-Index Metrics
-
H-Index33
-
i10 Index45
-
Citation Counts4,392
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* Total H Index Rankings
Rankings
242,847
World Rank
262
Country Rank
53
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
251,190
World Rank
269
Country Rank
12
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
257,699
World Rank
272
Country Rank
57
University
Ranking Based On Selection:
16
Engineering & Technology / Environmental Science & Engineering
MXene | Graphene | Advanced materials | Membrane technology | Environmental Scienc
MXene | Graphene | Advanced materials | Membrane technology | Environmental Scienc
H-Index Metrics
-
H-Index31
-
i10 Index48
-
Citation Counts4,129
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* Total H Index Rankings
Rankings
273,457
World Rank
294
Country Rank
63
University
Ranking Based On Selection:
17
Engineering & Technology / Environmental Science & Engineering
Membrane Separations for Water and Wastewater Treatment and DSP for Pharma (protein purification
Membrane Separations for Water and Wastewater Treatment and DSP for Pharma (protein purification
H-Index Metrics
-
H-Index30
-
i10 Index45
-
Citation Counts2,966
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* Total H Index Rankings
Rankings
278,088
World Rank
298
Country Rank
7
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
Modelling of Transport and Reacting Phenomena (Air Quality | Risk Assessment | Solar Thermochemical
Modelling of Transport and Reacting Phenomena (Air Quality | Risk Assessment | Solar Thermochemical
H-Index Metrics
-
H-Index30
-
i10 Index56
-
Citation Counts3,604
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* Total H Index Rankings
Rankings
287,030
World Rank
301
Country Rank
144
University
Ranking Based On Selection:
19
Engineering & Technology / Environmental Science & Engineering
Environment and development | Water governance | WEF Nexus | Environmental policy | Middle Eas
Environment and development | Water governance | WEF Nexus | Environmental policy | Middle Eas
H-Index Metrics
-
H-Index29
-
i10 Index51
-
Citation Counts2,745
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* Total H Index Rankings
Rankings
309,695
World Rank
335
Country Rank
164
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Fibre Optic Sensing | Underground Construction | Centrifuge Modellin
Fibre Optic Sensing | Underground Construction | Centrifuge Modellin
H-Index Metrics
-
H-Index28
-
i10 Index50
-
Citation Counts2,506
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* Total H Index Rankings
Rankings
375,350
World Rank
409
Country Rank
198
University
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Earth and Environmental Studies - Remote Sensing application
Earth and Environmental Studies - Remote Sensing application
H-Index Metrics
-
H-Index25
-
i10 Index50
-
Citation Counts2,027
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* Total H Index Rankings
Rankings
385,974
World Rank
423
Country Rank
204
University
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
Marine cytogenetics | Aquaculture genetics | Marine Genotoxicology | Biodiversity | Sustainabilit
Marine cytogenetics | Aquaculture genetics | Marine Genotoxicology | Biodiversity | Sustainabilit
H-Index Metrics
-
H-Index25
-
i10 Index49
-
Citation Counts1,739
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* Total H Index Rankings
Rankings
399,424
World Rank
442
Country Rank
96
University
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
2D materials and Heterostructures | Thin Film devices for energy conversion and energy storag
2D materials and Heterostructures | Thin Film devices for energy conversion and energy storag
H-Index Metrics
-
H-Index24
-
i10 Index30
-
Citation Counts3,486
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* Total H Index Rankings
Rankings
421,145
World Rank
472
Country Rank
103
University
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Environmental Health | Ambient and indoor air quality | Bioaerosol | indoor pollutio
Environmental Health | Ambient and indoor air quality | Bioaerosol | indoor pollutio
H-Index Metrics
-
H-Index23
-
i10 Index42
-
Citation Counts2,271
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* Total H Index Rankings
Rankings
443,086
World Rank
486
Country Rank
107
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Waste Management | Nano-Materials | Polymer
Waste Management | Nano-Materials | Polymer
H-Index Metrics
-
H-Index22
-
i10 Index38
-
Citation Counts2,201
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